/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchy.h
Removes all of the metadata under a given item
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=URigHierarchy) bool RemoveAllMetadata ( [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) InItem )